VLC for Apple TV plays virtually all of your media
 

The new Apple TV is a more capable media device than its predecessors, but let's face it: out of the box, it's not much use if your collection is in formats that Apple doesn't handle. That's where the newly released (and long promised) VLC for Apple...

http://www.engadget.com/2016/01/12/v...s-on-apple-tv/